导入热带玉米种质小群体选系的配合力研究  

Studies on Combining Ability of Selecting Line Transfered Tropical Germplasm in Maize Population

作　　者：吴景锋[1] 田志国[1] 于香云[2] 满秀芬[2] 

机构地区：[1]中国农业科学院作物育种栽培研究所 [2]中国农业科学院作物品种资源研究所

出　　处：《作物学报》1991年第6期424-429,共6页Acta Agronomica Sinica

摘　　要：以5个新育成的玉米自系为母本,导入热带玉米种质小群体的选系“中7490”的6个姊妹系为父本,按 NCⅡ 交配设计,对穗粒重等11个性状的一般配合力和特殊配合力效应进行了分析。结果表明,导入热带玉米种质的小群体同一基本株自交分离至7代的姊妹系,配合力仍有分离。自交系“中74—106”,几乎所有性状的一般配合力和特殊配合力,都具有较高发挥杂交优势的同步效应,为利用这个系可能选配出优良杂交组合,提供了依据。The incomplete diallete has been made using 5 maize self-lines bred recently as afemale parents and 6 selecting lines(small segregating population)transfered tropicalmaize germplasm as a male parents.Analysis was conducted for general and specificcombining ability effects of 11 characters,such as ear weight......etc.The resultsshowed there was a difference among auto-sister lines transfered tropical maizegermplasm even self-pollination upto the seventh generation.Self-line 74-106 exhib-ited higher hybrid vigor either in general or pecific combining ability in almost all char-acters.It is a evidence for using this superior self-line to select better hybrid combina-tion.

关 键 词：导入 热带 玉米 种质 群体 配合力 

分 类 号：S513.03[农业科学—作物学]